21 lines
477 B
C++
21 lines
477 B
C++
#pragma once
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#include <array>
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#include <cstdint>
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namespace eth {
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using mac_addr = std::array<uint8_t, 6>;
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static constexpr mac_addr MAC_BROADCAST = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
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static constexpr uint16_t ETH_ARP = __builtin_bswap16(0x0806);
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static constexpr uint16_t ETH_IPV4 = __builtin_bswap16(0x0800);
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struct __attribute__((packed)) header {
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mac_addr dst;
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mac_addr src;
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uint16_t ethertype;
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};
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static_assert(sizeof(header) == 14);
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} // namespace eth
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